When we leave school, our heads are naturally brimful of dogma, that is, of knowledge and opinions at second-hand. Such dead knowledge is extremely dangerous, unless it is sooner or later revived by the spirit of free inquiry. It does not matter whether our scholastic dogmas be true or false. The danger is the same. And why? Because to place either truth or error above the reach of argument is certain to weaken truth and to strengthen error. Secondly, because to hold as true on the authority of others anything which concerns us deeply, and which we could prove ourselves, produces feebleness, if not dishonesty. And, thirdly, because to feel unwilling or unable to meet objections by argument is generally the first step towards violence and persecution. I do not think of religious dogmas only. They are generally the first to rouse inquiry, even during our schoolboy days, and they are by no means the most difficult to deal with. Dogma often rages where we least expect it. Among scientific men the theory of evolution is at present becoming, or has become, a dogma. What is the result? No objections are listened to, no difficulties recognized, and a man like Virchow, himself the strongest supporter of evolution, who has the moral courage to say that the descent of man from any ape whatsoever is, as yet, before the tribunal of scientific zoology, "not proven," is howled down in Germany in a manner worthy of Ephesians and Galatians. But at present I am thinking not so much of any special dogmas, but rather of that dogmatic state of mind which is the almost inevitable result of the teaching at school. I think of the whole intellect, what has been called the _intellectus sibi permissus_, and I maintain that it is the object of academic teaching to rouse that intellect out of its slumber by questions not less startling than when Galileo asked the world whether the sun was really moving and the earth stood still; or when Kant asked whether time and space were objects, or necessary forms of our sensuous intuition. Till our opinions have thus been tested and stood the test, we can hardly call them our own. How true this is with regard to religion has been boldly expressed by Bishop Beveridge. "Being conscious to myself," he writes in his "Private Thoughts on Religion," "how great an ascendant Christianity holds over me beyond the rest, as being that religion whereinto I was born and baptized; that which the supreme authority has enjoined and my parents educated me in; that which every one I meet withal highly approves of, and which I myself have, by a long-continued profession, made almost natural to me: I am resolved to be more jealous and suspicious of this religion than of the rest, and be sure not to entertain it any longer without being convinced, by solid and substantial arguments, of the truth and certainty of it."